import sys
from PyQt5.QtWidgets import QWidget,QCalendarWidget,QLabel,QApplication
from PyQt5.QtCore import QDate

class Example(QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):
        cal = QCalendarWidget(self)
        cal.setGridVisible(True)
        cal.move(20,20)
        cal.clicked[QDate].connect(self.showDate)

        self.lbl=QLabel(self)
        date=cal.selectedDate()
        self.lbl.setText(date.toString())
        self.lbl.move(130,320)

        self.setGeometry(300,300,350,300)
        self.setWindowTitle('Calendar')
        self.show()

    def showDate(self,date):
        self.lbl.setText(date.toString())

if __name__=='__main__':
    app=QApplication(sys.argv)
    ex=Example()
    sys.exit(app.exec_())
